Coronal loop heating by Alfven waves

Physics

Scientific paper

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Coronal Loops, Magnetization, Magnetohydrodynamic Waves, Mathematical Models, Plasma Heating, Resonance, Wave Dispersion, Wave Excitation, Boundary Conditions, Eigenvalues, Eigenvectors, Landau Damping, Tensor Analysis

Scientific paper

The excitation and dissipation of global and surface Alfven waves and their conversion into kinetic Alfven waves have been analyzed for solar coronal loops using a cylindrical model of a magnetized plasma. Also the optimal conditions for coronal loop heating regimes with density of dissipated power approximately equal to 103 erg/cu cm/sec by the new scheme named combined Alfven wave resonance are found. Combined Alfven wave heating regime appears when the global Alfven wave is immersed into the Alfven continuum with the condition of not-so-sharp distribution of axial current.

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